#!/bin/bash -e

cd $(dirname $0)

#FIXME: anaconda just upload serval lastest version, so this version may lose efficacy
echo "this script only for linux/macos/windows-unix-like-env(MSYS etc) prepare MKL env"
echo "if you build windows for native at cmd.exe, powershell env or Visual Studio GUI,"
echo  "u need download MKL package and untar manually"
echo "refs: https://software.intel.com/content/www/us/en/develop/tools/math-kernel-library/choose-download/windows.html"
MKL_VERSION=2019.5
MKL_PATCH=281
CONDA_BASE_URL=https://anaconda.org/intel
OS=$(uname -s)
FILE_PREFIX=null
TAR=tar
if [ $OS = "Darwin" ];then
    FILE_PREFIX=osx
elif [ $OS = "Linux" ];then
    FILE_PREFIX=linux
elif [[ $OS =~ "NT" ]]; then
    FILE_PREFIX=win
    # NT use /c/Windows/system32/tar will stuck for big file
    # so we back to GNU tar
    TAR=/usr/bin/tar
else
    echo "DO NOT SUPPORT OS NOW"
    exit -1
fi

echo "config FILE_PREFIX to: $FILE_PREFIX"

rm -rf mkl

if [[ -z ${ALREADY_INSTALL_MKL} ]]
then
    echo "init mkl from software.intel.com"
    for platform in 32 64
    do
        if [ $OS = "Darwin" ]&&[ $platform = 32 ];then
            echo "strip 32 bit file for Darwin"
            continue
        fi
        mkdir -p mkl/x86_${platform}
        for package in "mkl-include" "mkl-static"
        do
            DOWNLOAD_FILE=${package}-${MKL_VERSION}-intel_${MKL_PATCH}.tar.bz2
            echo "Installing ${DOWNLOAD_FILE} for x86_${platform}..."
            URL=${CONDA_BASE_URL}/${package}/${MKL_VERSION}/download/$FILE_PREFIX-${platform}/${DOWNLOAD_FILE}
            echo "try download mkl package from: ${URL}"
            wget -q --show-progress "${URL}" -O mkl/x86_${platform}/${DOWNLOAD_FILE}
            $TAR xvj -C mkl/x86_${platform} -f mkl/x86_${platform}/${DOWNLOAD_FILE}
        done
    done
fi